SPIKECOR: fMRI tool for automated correction of head motion spikes
This algorithm corrects for "spikes" in fMRI data, typically caused by abrupt head motion during scanning. SPIKECOR identifies outliers using Principal Component Analysis (PCA) in a sliding time-window; it is sensitive to global motion artifact, and stable against non-stationary signal changes.
Unlike typical "scrubbing" protocols it is automated, and identifies motion outliers using purely statistical criteria - no need to select arbitrary motion thresholds! It also replaces outlier volumes with interpolated values using cubic splines, which minimizes discontinuities in the data.
Unlike typical "scrubbing" protocols it is automated, and identifies motion outliers using purely statistical criteria - no need to select arbitrary motion thresholds! It also replaces outlier volumes with interpolated values using cubic splines, which minimizes discontinuities in the data.
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Recent Activity - Forums
Welcome to Open-Discussion posted by Nathan Churchill on Nov 30, 2013
Welcome to Help posted by Nathan Churchill on Nov 30, 2013
Recent Activity - Files
spikecor_fmri: SPIKECOR_2014_04_10 release
SPIKECOR_2014_04_10.zip posted by Nathan Churchill on Apr 10, 2014
spikecor_fmri: SPIKECOR_2013_11_29 release
SPIKECOR_2013_11_29.zip posted by Nathan Churchill on Nov 30, 2013